Vulcanizer



Oct. -20, 1925.

O. J. KUHLKE VULCANIZER Filed April 24, 1925 u 5 Sheets-511061. 1

AlllllullV MI? W RM 0 T. N] E V0 m 0 3) ATTORNEY.

Oct. 20,1925. 1,558,096"

0. J. KUHLKE VULCANIZER Filed April 24, 1925" s sheets-shut 2 IN VEN TOR.

5y ATTORNEY.

CMPQ' v 1,558,096 0. J. KUHLKE VULCANIZER Filed April 24. 1925 s'sh'uu-sneu s oci. 20,1925

ATTORNEY.

Patented Oct. 20, i925.

UNITED STATES PATENT OTTO J. KUHLKE. 0F AKRON. OHIO, AESIGNOR TO THE KUHLKE MACHINE GQliiTPEJW, OF AKRON, OHIO, A CORPORATION OF OHIO.

VULCAN IZER.

Application filed April 24, 1925.

To all "ac/mm. it may concern:

Be it known that I. ()T'ro J. Kimmie, a citizen of the United States, and a resident of Akron, countyof Summit, and State of Ohio, have invented certain new and useful Im rovements in Vulcanizers, of which the fol owing is a specification.

The present invention relates to a vulcanizer of the steam chambered type adapted for the manufacture of pneumatic automobile tires. The vulcanizer is of the hinged variety supported vertically so that it can be opened easily and the tire placed therein in vertical position. For convenience, the vulcanizer is made in two parts or a duplex type.

The invention in its preferred form is illustrated in the drawings forming a part of the present application, it. being understood that exact conformity with the details of the device is not. essential, variations being possible within the scope of the invention as set forth in the appended claims.

In the drawings:

Figure 1 is a front elevation of the mechanism;

Figure 2 is an end elevation;

Figure 3 is a. horizontal section on the line 3-3, looking upward; and

Figure 4 is a detail of one of the tire supporting rings. I

The device of the present invention comprises a heavy casting or base member 1, to the up er surface of which is bolted a vertical we or central casting 2 which extends upwardly between the two tire molding units. The main portion oi the central web is circular inside elevation, but is formed with laterally extending parallel arms 3 arranged in two pairs on either side of the central casting -\\'hich-form parts of the hinges of the outer swinging mold sections.

The complete mold units are alili'e'on either. side of the central web, beingarranged in this manner for the sake of economy in floor space and to obtain a balonce on either side of the central web. Each mold comprises a chambered or steam jacketed casting 4, the outer surface of which .is provided with a rib 5 adapted to seat against a circular shoulder 6 on the central supporting web. The stationary mold section is provided with a suitable number of lugs 7 through which pass bolts 8 which secure the stationary mold section to the tion.

Serial No. 25,487.

central casting. The chamber 9 within the casting forms a space for the circuiation of steam. The outer face of the casting is formed with one side of the tire molding recess and with a circular ledge 10 to receive one side of the usual bead forming rings 11.

The other half of the mold is formed by a. somewhat similar chambered mold section 12 with the chamber 13 for the circulation of steam, themoldingsurface for the tire and a ledge 14: similar to the ledge 10. The outer mold section is arran ed to swing o'utwardly, as shown in dotte lines in Figure 3, being, for this purpose, provided with short segmental flanges 15 which are bolted to swinging arms 16 mounted on vertical pivots 17 in the arms 3. \Nhen the molds are closed they are locked securely by means of swinging bolts 18, pivoted upon lugs 1.9 formed on the web 2, and passing through notched ears 20 on the swinging mold section. ()ppositely positioned lugs 21 on the stationary and swinging mold eetions aii'ord means for prying the mold sections apart.

A tire 22 is shown in position within the mold cavity, being mounted upon the curing rings 11 in the usual manner. usual turn connecting with a rigid pipe I pipes 26 for the two molding radially through the casting 2 and a nected to av suitable source of c trolled by valves 27. 28 in i inlets for the chambered molds and able drainage ports.

In order to support the tire curing rings within the mold preparatory ciosing, the web 2 is formed with op Italy positioned lugs 30, the lower sin of which are semi-circular. On eacn lug is positioned an arm 31 having an eccentric extension 32 which serves as a supportfor the curing rings each arm is adjustable about a central bolt 33, a' radial setscrew 34 serving to further secure the arm in pcsi- By adjusting the arms toward or from the center of the mold, diltercnt sizes of band rings may be accommodated in the device, thus giving a large range oi. tires which may be cured.

When it is desired to change the eq uip- 119" ment for the vulcanization of diiierent sizes of tires, the chambered mold'sections may be readily removed and others secured in their place. By the arrangement here shown and described, a single unit may be used for dillerent sizes of tires.

The apparatus is simple and easy of adjustment for use in factories having large or small production. It may be quickly adapted for rapid and economical production and has other advantages apparent to those skilled in the art. The tire assembly, comprising the tire, bead rings and air vbag, are easily inserted within the mold.

What is claimed is:

1. An apparatus forthe vulcanization of tires comprising a central vertical. supporting Web, two stationary chambered mold sections secured to either side of the web, and hinged chamber mold motions adapted to swing against the stationary mold sections. i

2. An apparatus for t e vulcanization of tires comprising a central vertical supporting Web, two stationary chambered mold sections secured to either side of the web, chambered mold sections hinged to the Web and adapted to swing against the stationary mold sections, and locking devices carried by the web for clamping the mold sections together.

3, In a vertical mold of the swinging type, a support, a stationary mold section attached 'to the support, avswingin mold section hinged upon the support, an lateral arms to carry a tire assembly within the mold, the arms being adjustable to support tire assemblies of different internal di-- ameters.

4. In a vertical mold, a support, a stationary mold section attached to the support, a movable mold section, and lateral arms carried by the support to hold a tire.

OTTO J. KUHLKE. 

